Developer information

Description

Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.

Recent changes:Fixed INTEG termination condition. It would return inaccurate results in certain cases.Fixed importing numbers with exponent but no mantissa, e.g. E3, -E-5, etc. This got broken in 1.5.Fixed crash when trying to allocate ridiculously large matrices.While entering a numeric argument, the up-arrow and down-arrow keys would perform BST and SST, which should be blocked. Fixed.Testing flag 75 would turn on the programmable menu. Fixed.

Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.

Recent changes:Fixed INTEG termination condition. It would return inaccurate results in certain cases.Fixed importing numbers with exponent but no mantissa, e.g. E3, -E-5, etc. This got broken in 1.5.Fixed crash when trying to allocate ridiculously large matrices.While entering a numeric argument, the up-arrow and down-arrow keys would perform BST and SST, which should be blocked. Fixed.Testing flag 75 would turn on the programmable menu. Fixed.